Affordable seawater electrolysis is key to extracting green CO2 and hydrogen for sustainable e-fuel production
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Our technology
Extracting CO2 and H2 directly from the air is expensive and impractical. This has made production of cost-effective e-fuels and large-scale decarbonization difficult. However, the ocean is a pre-concentrated source of CO2, a virtually infinite source of hydrogen, and it replenishes itself by pulling CO2 back down from the air. This makes it a critical tool to help use electrochemistry to achieve net zero emissions. Unfortunately, the high cost of electrochemically extracting CO2 and H2 has also been a barrier—until now. Brineworks is solving this problem.
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Scaling at low cost
Our modular system is cost-efficient and avoids using precious metals. Brineworks’ electrolysis technology outperforms electrodialysis in producing necessary acid and base for CO2 extraction from saltwater, while generating large amounts of green hydrogen. This offers a cost-effective solution for fuel feedstock production.
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Improved membrane technology
High-efficiency membranes
Membrane configuration unlocks use of Earth-abundant materials
Less membrane material drives lower CAPEX
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Hydrogen co-production
Large quantities of green H2 produced for every ton of CO2 extracted
Co-generation of hydrogen supports e-fuel production
Significant additional revenue stream
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Lower CAPEX
Low-cost materials
High durability reduces maintenance costs
High throughput allows for smaller system footprint with lower equipment cost
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Environmentally Responsible Fuel Feedstock Production
Brineworks' electrolysis technology is critical for successfully decarbonizing industry and achieving net zero by 2050 because it unlocks responsibly deployable CO2 and green hydrogen extraction
In technical terms, the acid and base outputs of our system can be used to safely control ocean chemistries, allowing us to leverage pH to control the movement of carbon between the ocean and the atmosphere.
By first acidifying seawater and later neutralizing it with our base stream, we can directly extract pure CO2, then provide it as a feedstock for e-fuels or sequester it for permanent carbon removal. Once CO2 has been / extracted from the ocean, equilibration occurs where the ocean naturally restores its initial carbon content. This mitigates negative ecological impacts of the CO2 extraction and ensures that fuels produced are carbon neutral.
Our system was built with nature in mind: operating with Earth-abundant materials, it is as economical and sustainable as the services it provides. This system therefore makes it simpler and more affordable to extract carbon dioxide from the ocean and to use the ocean to remove CO2 from the atmosphere, helping to fight climate change while also protecting marine ecosystems.
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